| 1. |
- Ambrosio, Fabrisia, et al.
(författare)
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The effect of muscle loading on skeletal muscle regenerative potential : an update of current research findings relating to aging and neuromuscular pathology
- 2009
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Ingår i: American Journal of Physical Medicine & Rehabilitation. - Baltimore : Lippincott Williams & Wilkins. - 0894-9115 .- 1537-7385. ; 88:2, s. 145-155
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Forskningsöversikt (refereegranskat)abstract
- Skeletal muscle is a dynamic tissue with a remarkable ability to continuously respond to environmental stimuli. Among its adaptive responses is the widely investigated ability of skeletal muscle to regenerate after loading or injury or both. Although significant basic science efforts have been dedicated to better understand the underlying mechanism controlling skeletal muscle regeneration, there has been relatively little impact in the clinical approaches used to treat skeletal muscle injuries and wasting. The purpose of this review article is to provide an overview of the basic biology of satellite cell function in response to muscle loading and to relate these findings in the context of aging and neuromuscular pathology for the rehabilitation medicine specialist.
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| 2. |
- Biasca, Nicola, et al.
(författare)
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The avoidability of head and neck injuries in ice hockey : an historical review
- 2002
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Ingår i: British Journal of Sports Medicine. - : BMJ. - 0306-3674 .- 1473-0480. ; 36:6, s. 410-427
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Forskningsöversikt (refereegranskat)abstract
- The number of minor traumatic brain injury (mTBI), cerebral concussions, is increasing and cannot be eliminated by any kind of equipment. Prevention strategies, such as the introduction of "checking from behind" rules have become effective in decreasing the number of severe spinal injuries. A new "head checking" rule should reduce mTBI in the same way in the following years. Mouthguards should be mandatory as an effective device for the prevention of dental and orofacial injuries, as well as reducing the incidence and severity of mTBI. A new internet database system, the International Sports Injury System (ISIS) should improve epidemiological analysis of head, face, and spinal injuries worldwide.ISIS should provide an internationally compatible system for continuous monitoring of risk factors, protective effects of equipment, and protective effects of equipment and effects of changes in rules through the years.
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| 3. |
- Dwari, Ranjan, et al.
(författare)
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Dry beneficiation of coal : a review
- 2007
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Ingår i: Mineral Processing and Extractive Metallurgy Review. - : Informa UK Limited. - 0882-7508 .- 1547-7401. ; 28:3, s. 177-234
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Forskningsöversikt (övrigt vetenskapligt/konstnärligt)abstract
- Coal continues to play a major role in the economic development of a country, especially in metallurgical industries and conventional power generation plants. For effective utilization of high ash coals, it is necessary to beneficiate them. The wet beneficiation process for coal cleaning is currently the predominant method of purification of coal in the world. However, dry beneficiation of coal has obvious advantages over wet processes. The dry processes for coal are based on the physical properties of coal and its associated mineral matters. Different types of equipment for dry beneficiation have been developed, based on the exploitation of physical properties such as density, size, shape, magnetic susceptibility, and electrical conductivity. This article presents a summary assessment of different technologies and their performance in the beneficiation process of high ash coals with particular reference to Indian thermal coals. The literature on sorting, air jigs, magnetic separation, air-dense medium fluidized bed separation, and electrostatic separation is summarized and discussed
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| 4. |
- Elming, Sten-åke, et al.
(författare)
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A palaeomagnetic and Ar-40/Ar-39 study of late precambrian sills in the SW part of the Amazonian craton: Amazonia in the Rodinia reconstruction
- 2009
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Ingår i: Geophysical Journal International. - 0956-540X .- 1365-246X. ; 178:1, s. 106-122
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Forskningsöversikt (refereegranskat)abstract
- A new key palaeomagnetic pole (Plat. = 64.3 degrees S, Plon. = 271.0 degrees E, N = 14, A(95) = 9.2 degrees; Q = 5) is calculated from a primary magnetization isolated in early Neoproterozoic Aguapei basic sills and dykes hosted by 1.3-1.0 Ga sedimentary rocks from the southwestern part of the Amazon craton. The characteristic remanence carried by stable, pseudo-single domain titanomagnetite shows two antipodal polarities that pass a reversals test. Magnetic anisotropy for most sites shows fabric orientations that are typical of sills, with horizontal magnetic foliations concordant to the flat-lying bedding of the host sedimentary rocks. Ar-40/Ar-39 analyses for one of the sills reveal a well-defined plateau age at 981 +/- 2 Myr. A tectonic reconstruction for Amazonia relative Laurentia based on this new pole 'is consistent with' a position of the present northwestern part of Amazonia attached with eastern Laurentia close to Greenland at ca. 981 Ma. On basis of palaeomagnetic and geological data, we propose a scenario where Amazonia moved northeastwards along the present southeast coast of Laurentia from ca. 1200 to 980 Ma. By 980 Ma, Amazonia is placed alongside Laurentia and Baltica, in a position similar to other reconstructions of Rodinia but with a significantly different orientation.
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| 5. |
- Fell, Terence
(författare)
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Conflict and legitimacy : Explaining tensions in Swedish hunting policy at the local level
- 2008
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Ingår i: Environmental Politics. - : Routledge. - 0964-4016 .- 1743-8934. ; 17:1, s. 105-114
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Forskningsöversikt (refereegranskat)abstract
- This article reveals the existence of a so-called "ghost policy" (informal tradition and/or obsolete policy rules) that resists new official policy concerning the management of natural resources in Sweden. These ghost policies are often ignored in the Swedish policy making process inhibiting, therefore, viable and legitimate solutions to the profound negative consequences that costly local conflicts of interest have on democracy. These conflicts of interest expose and represent a classic and current problem intrinsic to the communitarian policy process in Sweden. That is, since the Swedish policy process has a blind spot, it focuses on the views of experts and interest organisations and, subsequently, overlooks the perceptions of those stakeholders (in this case local game hunters) affected by policy. This undermines the policy's goals since they are alien to local tradition. Furthermore, not just the existence and ubiquity of ghost policies, but even social facts such as the physical size and membership of an organisation influence conflicts of interest. This implies that there is still room for collaborations with locals as well as social engineering in the policy process. In order then for the Swedish policy process to gain more legitimacy from stakeholders involved with natural resource management the government must review and change its present processes of policy making.
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| 6. |
- Fitz, Kelly, et al.
(författare)
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Cell-Utes and Flutter-Tongued Cats: Sound Morphing Using Loris and the Reassigned Bandwidth-Enhanced Model
- 2003
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Ingår i: Computer music journal. - : Massachusetts Institute of Technology. - 0148-9267 .- 1531-5169. ; 27:3, s. 44-65
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Forskningsöversikt (refereegranskat)abstract
- An account of sound manipulation and transformation modeling based on the usage of Loris and the reassigned bandwidth-enhanced additive sound model was presented. The bandwidth enhancement technique combined sinusoidal energy and noise energy into single partial. The single partial contained time-varying frequency, amplitude, noisiness parameters.
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| 7. |
- Franzén, Torkel
(författare)
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The popular impact of Gödel's incompleteness theorem
- 2006
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Ingår i: Notices of the American Mathematical Society. - 0002-9920 .- 1088-9477. ; 53:4, s. 440-443
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Forskningsöversikt (refereegranskat)abstract
- The author, whose untimely passing in April 2006 was a great loss to the logic community, used this short paper primarily to dispel a few popular and not so popular misinterpretations of Gödel's incompleteness theorems. The most obvious misconceptions arise in areas having no direct connection with mathematics. But even within scientific circles, it is useful for the author to have pointed out that no unsolved problem in "traditional mathematics" has been shown to be undecidable via Gödel's first incompleteness theorem. (The Paris-Harrington undecidable problem does have to do with standard mathematical concepts, but it was not obtained from Gödel's result.) The author also makes illuminating remarks about Gödel's second incompleteness theorem concerning unprovability of the consistency of sufficiently strong mathematical theories. For example, the role of consistency proofs in justifying mathematical reasoning has been overemphasized. Moreover, there are informal `proofs' on the same level as ordinary mathematical argumentation that may convince most mathematicians of the consistency of, say, Peano arithmetic. For a more extensive treatment of all of these matters, the author refers the reader to his recent book Gödel's theorem, A K Peters, Wellesley, MA, 2005.
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| 8. |
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| 9. |
- Helin, Sven, 1962-, et al.
(författare)
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An inquiry into the study of corporate codes of ethics
- 2007
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Ingår i: Journal of Business Ethics. - : Springer Science and Business Media LLC. - 0167-4544 .- 1573-0697. ; 75:3, s. 253-271
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Forskningsöversikt (refereegranskat)abstract
- This paper takes its point of departure in an article by Stevens [Stevens, B.: 1994, Journal of Business Ethics 54, 163–171], in which she identified a lack of knowledge regarding how corporate codes of ethics are communicated and affect behavior in organizations. Taking heed of this suggested gap, we review studies on corporate codes of ethics with an empirical content, published since 1994. The conclusion of the review is that we still lack knowledge on how codes work, how they are communicated and how they are transformed inside organizations. Stevens’ plea could even be extended, arguing that the knowledge gap might be of even more significance than in the mid-1990s. Some directions for how this situation can be approached in future studies are outlined in the paper.
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| 10. |
- Jonsson, M., et al.
(författare)
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Humidified gas turbines - a review of proposed and implemented cycles
- 2005
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Ingår i: Energy. - : Elsevier BV. - 0360-5442 .- 1873-6785. ; 30:7, s. 1013-1078
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Forskningsöversikt (refereegranskat)abstract
- Gas turbines with air-water mixtures as the working fluid promise high electrical efficiencies and high specific power outputs to specific investment costs below that of combined cycles. Different humidified gas turbine cycles have been proposed, for example direct water-injected cycles, steam-injected cycles and evaporative cycles with humidification towers. However, only a few of these cycles have been implemented and even fewer are available commercially. This paper comprehensively reviews the literature on research and development on humidified gas turbines and identifies the cycles with the largest potential for the future. In addition, the remaining development work required for implementing the various humidified gas turbine cycles is discussed. This paper can also be used as a reference source that summarizes the research and development activities on humidified gas turbines in the last three decades.
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